CH419251A - Schaltungsanordnung für die Wahlaufnahmeeinrichtungen einer Fernsprechvermittlungsanlage - Google Patents

Schaltungsanordnung für die Wahlaufnahmeeinrichtungen einer Fernsprechvermittlungsanlage

Info

Publication number
CH419251A
CH419251A CH1549164A CH1549164A CH419251A CH 419251 A CH419251 A CH 419251A CH 1549164 A CH1549164 A CH 1549164A CH 1549164 A CH1549164 A CH 1549164A CH 419251 A CH419251 A CH 419251A
Authority
CH
Switzerland
Prior art keywords
circuit arrangement
telephone exchange
dialing devices
dialing
devices
Prior art date
Application number
CH1549164A
Other languages
English (en)
Inventor
Vogel Georg
Schoenemeyer Hilmar
Gasser Lorenz
Original Assignee
Standard Telephon & Radio Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Standard Telephon & Radio Ag filed Critical Standard Telephon & Radio Ag
Publication of CH419251A publication Critical patent/CH419251A/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/42—Circuits for by-passing of ringing signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted
    • H04Q1/4535—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted with an additional signal transmitted for voice protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/46—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies comprising means for distinguishing between a signalling current of predetermined frequency and a complex current containing that frequency, e.g. speech current
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Electronic Switches (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Details Of Television Systems (AREA)
CH1549164A 1963-04-06 1964-12-01 Schaltungsanordnung für die Wahlaufnahmeeinrichtungen einer Fernsprechvermittlungsanlage CH419251A (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEST20480A DE1214276B (de) 1963-04-06 1963-04-06 Schaltungsanordnung zum Auswerten von Kombinationssignalen
DEST21410A DE1203319B (de) 1963-04-06 1963-12-04 Schaltungsanordnung fuer die Wahlaufnahme-einrichtungen einer Fernsprechvermittlungsanlage

Publications (1)

Publication Number Publication Date
CH419251A true CH419251A (de) 1966-08-31

Family

ID=25994167

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1549164A CH419251A (de) 1963-04-06 1964-12-01 Schaltungsanordnung für die Wahlaufnahmeeinrichtungen einer Fernsprechvermittlungsanlage

Country Status (8)

Country Link
US (2) US3330913A (de)
AT (1) AT285686B (de)
BE (1) BE646069A (de)
CH (1) CH419251A (de)
DE (2) DE1214276B (de)
FR (1) FR1339209A (de)
GB (2) GB998083A (de)
NL (2) NL6403445A (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1065367A (en) * 1965-11-19 1967-04-12 Standard Telephones Cables Ltd Improvements in or relating to telephone systems
US3603740A (en) * 1969-08-18 1971-09-07 Northern Electric Co Method and means for ringing a telephone subset
US3618038A (en) * 1969-12-24 1971-11-02 Edward S Stein Telephonic data transmitting system
NL7113750A (de) * 1971-10-07 1973-04-10
US3800096A (en) * 1972-09-08 1974-03-26 Scott D Tone data receiver
JPS4984108A (de) * 1972-12-15 1974-08-13
JPS50151010A (de) * 1974-05-24 1975-12-04
US3936801A (en) * 1974-09-12 1976-02-03 Bell Telephone Laboratories, Incorporated Multifrequency signal receiver timing circuit
US3982079A (en) * 1975-04-16 1976-09-21 Litton Business Telephone Systems, Inc. Touch-to-rotary converter for a telephone instrument
DE2723795A1 (de) * 1977-05-26 1978-12-07 Standard Elektrik Lorenz Ag Schaltungsanordnung zur abtrennung einer stoer- bzw. signalquelle von einem an einer fernsprechleitung betriebenen tastwahlempfaenger
JPS54103116U (de) * 1978-10-12 1979-07-20
JPS54103115U (de) * 1978-10-12 1979-07-20
WO1992011723A1 (en) * 1990-12-21 1992-07-09 Codex Corporation Call progress decoder for multiple cadenced tones on telephone lines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL267564A (de) * 1960-08-22

Also Published As

Publication number Publication date
FR1339209A (fr) 1963-10-04
US3330913A (en) 1967-07-11
GB1065540A (en) 1967-04-19
AT285686B (de) 1970-11-10
NL6403445A (de) 1964-10-07
NL6414177A (de) 1965-06-07
DE1203319B (de) 1965-10-21
DE1214276B (de) 1966-04-14
BE646069A (de) 1964-10-05
GB998083A (en) 1965-07-14
US3270144A (en) 1966-08-30

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